Asakiyume mita

Is that actually a deliberate volcanic pie? If so, how did you do it? (I'm betting it went more or less volcanic by itself, and that you added Dramatic Fruit Lava. But I'm wrong quite lots.)

Because of William Pene du Bois's The Twenty-One Balloons, I thought for decades that the year without a summer was due to the explosion of Krakatoa, and when I looked it up several years ago was rather shocked to find Tambora instead....